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Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 8:13 am
by Mtl_Biker
As some of you know, I received my used (new to me) Feinwerkbau 602 last week. It arrived with the sights and stock removed to make for a smaller package. I installed the stock and the sights and I'm so far VERY happy with the rifle.

But last night was our club's airgun night and the club owns an almost identical FWB 602. Comparing the two I noticed that the front sight is mounted differently on both rifles. And nobody at the club knew which was the correct way.

Image

Which one is correct? And does it really matter? At the club we've been shooting that rifle for months very successfully, and with my rifle on a bag rest, I succeeded in getting a PERFECT 120/120 score at 10-meters on a standard air rifle target. I had not ever been able to do that with any of the other guns I own and I think this indicates the rifle is set up well.

So, what's the right way and does it really matter?

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 8:18 am
by Tim S
Normally the end with the foresight element/insert faces the shooter.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 8:34 am
by Mtl_Biker
Tim S wrote:Normally the end with the foresight element/insert faces the shooter.
Both those guns have the foresight element facing the shooter. In both cases the end nearest the shooter is unscrewed to get to the element.

Looking at Google images of the gun, it looks like the bottom rifle is installed correctly, or at least the way most of the images depict it.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 8:52 am
by Tim S
I think the far rifle has the element at the wrong end. The large thumbscrew is normally used for elements. The other is for filters, spirit levels, or eagle eye lenses.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 9:33 am
by Shooterer
Tim S wrote:I think the far rifle has the element at the wrong end. The large thumbscrew is normally used for elements. The other is for filters, spirit levels, or eagle eye lenses.
Tim is correct, the iris should be closer to the shooter and the magnifying lens is after the sighting ring.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 10:17 am
by Mtl_Biker
Shooterer wrote:
Tim S wrote:I think the far rifle has the element at the wrong end. The large thumbscrew is normally used for elements. The other is for filters, spirit levels, or eagle eye lenses.
Tim is correct, the iris should be closer to the shooter and the magnifying lens is after the sighting ring.
Magnifying lens?

So the club's gun is set up wrong. But it shoots really well and is very easy to get a good sight picture. In both cases, the aperture element was inserted from the end closest to the shooter.

Since they have the gun set that way and they like it, is there a reason for changing it? Other than just to be "correct"?

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 12:15 pm
by Shooterer
I thought you had this
http://www.gehmann.com/english/products ... tegorie=29
at one end of the sight tunnel and this
http://www.gehmann.com/english/products ... tegorie=26
at the other.

sorry for the confusion.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 12:58 pm
by Mtl_Biker
Shooterer wrote:I thought you had this
http://www.gehmann.com/english/products ... tegorie=29
at one end of the sight tunnel and this
http://www.gehmann.com/english/products ... tegorie=26
at the other.

sorry for the confusion.
That's (the links you provided) very interesting.... I had no idea that magnifying lenses could be used. Are they allowed in competition?

In any case, the sights on my FWB 602 are, as far as I can determine, original with the gun. And they're identical to what is on the gun owned by my local club. Other than for the fact that the adjustable iris on my rear sight also has color filters that can be dialed into place. My front sight is 22mm and the stuff you linked to is 18mm.

Pardon my inexperience, but do you have any idea if a magnifying lens is available for the sight on my 602? My eyesight isn't the greatest (and I wear progressive eyeglasses) so a bit of magnification probably would be helpful.

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 1:01 pm
by bruce
Not that it matters in the context of club shooting, but in ISSF air rifle matches the overhanging front sight would contravene rule 7.4.4(b)
"The front sight may not extend beyond the apparent muzzle."

Re: Which way to mount front sight - FWB 602?

Posted: Wed Jun 08, 2016 2:56 pm
by Mtl_Biker
bruce wrote:Not that it matters in the context of club shooting, but in ISSF air rifle matches the overhanging front sight would contravene rule 7.4.4(b)
"The front sight may not extend beyond the apparent muzzle."
Well then, that really clears up any question of which way the front sight should be mounted. Thank you.